Lines Matching +full:dma +full:- +full:queues

1 /* SPDX-License-Identifier: GPL-2.0-only */
67 * queues. E.g.: If you have two buffer queues of 512 descriptors and buffers,
70 * number of buffer queues to calculate how many descriptors each buffer queue
83 #define IDPF_RX_BUFQ_WORKING_SET(rxq) ((rxq)->desc_count - 1)
87 if (unlikely(++(ntc) == (rxq)->desc_count)) { \
95 if (unlikely(++(idx) == (q)->desc_count)) \
117 ((((txq)->next_to_clean > (txq)->next_to_use) ? 0 : (txq)->desc_count) + \
118 (txq)->next_to_clean - (txq)->next_to_use - 1)
120 #define IDPF_TX_BUF_RSV_UNUSED(txq) ((txq)->stash->buf_stack.top)
122 (txq)->desc_count >> 2)
124 #define IDPF_TX_COMPLQ_OVERFLOW_THRESH(txcq) ((txcq)->desc_count >> 1)
129 (((txq)->num_completions_pending >= (txq)->complq->num_completions ? \
131 (txq)->num_completions_pending - (txq)->complq->num_completions)
136 ((++(txq)->compl_tag_cur_gen) >= (txq)->compl_tag_gen_max ? \
137 0 : (txq)->compl_tag_cur_gen)
154 * struct idpf_buf_lifo - LIFO for managing OOO completions
166 * struct idpf_tx_offload_params - Offload parameters for a given packet
227 /* The size limit for a transmit buffer in a descriptor is (16K - 1).
232 #define IDPF_TX_MAX_DESC_DATA (SZ_16K - 1)
243 DIV_ROUND_DOWN_ULL((IDPF_CTLQ_MAX_BUF_LEN - IDPF_RX_PTYPE_HDR_SZ), \
246 #define IDPF_GET_PTYPE_SIZE(p) struct_size((p), proto_id, (p)->proto_id_count)
274 * @__IDPF_Q_GEN_CHK: Queues operating in splitq mode use a generation bit to
279 * 0->1 or 1->0 on each ring wrap. SW maintains its own
285 * @__IDPF_Q_RFL_GEN_CHK: Refill queues are SW only, so Q_GEN acts as the HW
306 #define idpf_queue_set(f, q) __set_bit(__IDPF_Q_##f, (q)->flags)
307 #define idpf_queue_clear(f, q) __clear_bit(__IDPF_Q_##f, (q)->flags)
308 #define idpf_queue_change(f, q) __change_bit(__IDPF_Q_##f, (q)->flags)
309 #define idpf_queue_has(f, q) test_bit(__IDPF_Q_##f, (q)->flags)
312 __test_and_clear_bit(__IDPF_Q_##f, (q)->flags)
314 __assign_bit(__IDPF_Q_##f, (q)->flags, v)
364 * @num_rxq: Number of RX queues
365 * @num_txq: Number of TX queues
366 * @num_bufq: Number of buffer queues
367 * @num_complq: number of completion queues
368 * @rx: Array of RX queues to service
369 * @tx: Array of TX queues to service
370 * @bufq: Array of buffer queues to service
371 * @complq: array of completion queues
465 * struct idpf_txq_stash - Tx buffer stash for Flow-based scheduling mode
476 * struct idpf_rx_queue - software structure representing a receive queue
480 * @bufq_sets: Pointer to the array of buffer queues in splitq mode
501 * @dma: Physical address of ring
552 dma_addr_t dma; member
567 * struct idpf_tx_queue - software structure representing a transmit queue
575 * @dev: Device back pointer for DMA mapping
589 * --------------------------------
590 * | GEN=0-1023 |IDX = 0-63|
591 * --------------------------------
597 * --------------------------------
598 * |GEN | IDX = 0-8159 |
599 * --------------------------------
615 * @tx_max_bufs: Max buffers that can be transmitted with scatter-gather
616 * @stash: Tx buffer stash for Flow-based scheduling mode
624 * @dma: Physical address of ring
676 dma_addr_t dma; member
686 * struct idpf_buf_queue - software structure representing a buffer queue
702 * @dma: Physical address of ring
733 dma_addr_t dma; member
745 * struct idpf_compl_queue - software structure representing a completion queue
758 * TX queues.
761 * @dma: Physical address of ring
786 dma_addr_t dma; member
801 * Software queues are used in splitq mode to manage buffers between rxq
825 * @refillq: pointers to refill queues
839 * @num_refillqs: Number of refill queues. This is always equal to num_rxq_sets
841 * @refillqs: Pointer to refill queues array.
861 * @singleq.num_rxq: Number of RX queues associated
891 * @num_txq: Number of TX queues associated
893 * @stashes: array of OOO stashes for the queues
896 * completion queue, acculumated for all TX queues
922 cpu = cpumask_first(&q_vector->napi.config->affinity_mask); in idpf_q_vector_to_mem()
928 * idpf_size_to_txd_count - Get number of descriptors needed for large Tx frag
941 * idpf_tx_singleq_build_ctob - populate command tag offset and size
966 * idpf_tx_splitq_build_desc - determine which type of data descriptor to build
976 if (params->dtype == IDPF_TX_DESC_DTYPE_FLEX_L2TAG1_L2TAG2) in idpf_tx_splitq_build_desc()
983 * idpf_vport_intr_set_wb_on_itr - enable descriptor writeback on disabled interrupts
990 if (q_vector->wb_on_itr) in idpf_vport_intr_set_wb_on_itr()
993 q_vector->wb_on_itr = true; in idpf_vport_intr_set_wb_on_itr()
994 reg = &q_vector->intr_reg; in idpf_vport_intr_set_wb_on_itr()
996 writel(reg->dyn_ctl_wb_on_itr_m | reg->dyn_ctl_intena_msk_m | in idpf_vport_intr_set_wb_on_itr()
997 (IDPF_NO_ITR_UPDATE_IDX << reg->dyn_ctl_itridx_s), in idpf_vport_intr_set_wb_on_itr()
998 reg->dyn_ctl); in idpf_vport_intr_set_wb_on_itr()
1043 return !netif_subqueue_maybe_stop(tx_q->netdev, tx_q->idx, in idpf_tx_maybe_stop_common()